Stockpiles of Chemical Weapons Closer to Demise

In Siberia, the U.S. and its allies are building a $1 billion factory to "destroy 2 million Soviet-era artillery shells filled with deadly nerve gas. Destruction of the huge stockpile is expected to take about four years." Twenty-eight percent has already been destroyed, while the U.S. says its own stockpile is more than 40 percent destroyed.(AP)